package com.ifd.iview.model;

import java.util.List;

public interface UserManager {
	public abstract int delete(UserVO user);

	public abstract int update(UserVO user);

	public abstract int add(UserVO user);

	public abstract List getAll();
	
	public abstract UserVO findBy(String username, String password);
	
	public abstract UserVO findBy(String username);
}
